Energy storage system and monitoring apparatus for same

Abstract

The present disclosure discloses an energy storage system and a monitoring apparatus for the energy storage system. The monitoring apparatus for the energy storage system includes: a plurality of monitors, each monitor being configured to sample an input electrical signal and/or an output electrical signal of one energy storage device and determine an operating parameter of the corresponding energy storage device based on the input electrical signal and/or the output electrical signal, and each monitor supporting a wireless networking mode; and a display terminal configured to perform a wireless communication with an upper computer, and transmit the operating parameter of the corresponding energy storage device to the upper computer by performing a wireless communication with each monitor when each the monitor operates in the wireless networking mode, to allow the upper computer to display the operating parameter of the corresponding energy storage device.

What is claimed is: 
     
         1 . A monitoring apparatus for an energy storage system, comprising:
 a plurality of monitors, each of the plurality of monitors being configured to sample an input electrical signal and/or an output electrical signal of one energy storage device and determine an operating parameter of the corresponding energy storage device based on the input electrical signal and/or the output electrical signal, and each of the plurality of monitors supporting a wireless networking mode; and   a display terminal configured to perform a wireless communication with an upper computer, and transmit the operating parameter of the corresponding energy storage device to the upper computer by performing a wireless communication with each of the plurality of monitors when each of the plurality of monitors operates in the wireless networking mode, to allow the upper computer to display the operating parameter of the corresponding energy storage device.   
     
     
         2 . The monitoring apparatus according to  claim 1 , wherein each of the plurality of monitors is further configured to perform a wireless communication with the upper computer to transmit the operating parameter of the corresponding energy storage device to the upper computer. 
     
     
         3 . The monitoring apparatus according to  claim 2 , wherein each of the plurality of monitors is further configured to disconnect from the upper computer when the display terminal performs a wireless communication with the monitor. 
     
     
         4 . The monitoring apparatus according to  claim 1 , further comprising a networking relay arranged between the plurality of monitors and the display terminal and configured to forward the operating parameters in the plurality of monitors to the display terminal. 
     
     
         5 . The monitoring apparatus according to  claim 1 , wherein each of a plurality of energy storage devices comprises a photovoltaic module, a solar charging controller, a battery, and an inverter, and each of the plurality of monitors comprises:
 a photovoltaic monitor arranged between the photovoltaic module and the solar charging controller, and configured to: sample an output electrical signal of the photovoltaic module and an input electrical signal of the solar charging controller, determine a current value, a voltage value, a power, and power generation of the photovoltaic module based on the output electrical signal of the photovoltaic module and the input electrical signal of the solar charging controller, and perform an on-off control on a circuit between the photovoltaic module and the solar charging controller;   a direct current (DC) load monitor arranged between a DC source and a DC load of the energy storage system, and configured to: sample an output electrical signal of the DC source and an input electrical signal of the DC load, determine a power and power consumption of the DC load based on the output electrical signal of the DC source and the input electrical signal of the DC load, perform an on-off control on a circuit between the DC source and the DC load, and perform overcurrent protection based on the output electrical signal of the DC source and the input electrical signal of the DC load;   an alternating current (AC) load monitor arranged between the inverter and an AC load of the energy storage system, and configured to: sample an output electrical signal of the inverter and an input electrical signal of the AC load, determine a power and power consumption of the AC load based on the output electrical signal of the inverter and the input electrical signal of the AC load, perform an on-off control of a circuit between the inverter and the AC load, and perform overcurrent protection and leakage protection based on the output electrical signal of the inverter and the input electrical signal of the AC load; and   a battery monitor adapted to be connected to the battery, and configured to: sample an input electrical signal of the battery and an output electrical signal of the battery, and determine a power, a residual capacity, an actual capacity, and a health state of the battery based on the input electrical signal of the battery and the output electrical signal of the battery.   
     
     
         6 . The monitoring apparatus according to  claim 5 , wherein the photovoltaic monitor comprises:
 a photovoltaic input interface adapted to be connected to the photovoltaic module;   a photovoltaic output interface adapted to be connected to the solar charging controller;   a first sampling calculator connected to the photovoltaic input interface and the photovoltaic output interface respectively, and configured to: sample the output electrical signal of the photovoltaic module and the input electrical signal of the solar charging controller, and determine the current value, the voltage value, the power, and the power generation of the photovoltaic module based on the output electrical signal of the photovoltaic module and the input electrical signal of the solar charging controller;   a first network device connected to the first sampling calculator, supporting a wireless networking mode, and configured to transmit the current value, the voltage value, the power, and the power generation of the photovoltaic module to the display terminal;   a first networking button, the first network device further configured to enter a wireless networking mode in response to the first networking button being triggered;   a first switch arranged between the photovoltaic input interface and the photovoltaic output interface;   a first controller and a first switch button, the first controller having a power supply end connected to the photovoltaic module through the first switch button, and the first controller being connected to the first sampling calculator and configured to: control the first switch to be switched off in response to the output electrical signal of the photovoltaic module and/or the input electrical signal of the solar charging controller triggering protection; and   a first display device connected to the first network device and the first controller respectively and configured to display a current operating state, a switching on-off state of the first switch, and a network connection state of the first network device.   
     
     
         7 . The monitoring apparatus according to  claim 5 , wherein the DC load monitor comprises:
 a DC input interface adapted to be connected to the DC source;   at least one DC output interface, each of the at least one DC output interface adapted to be connected to one DC load;   a second sampling calculator connected to the DC input interface and the at least one DC output interface respectively, and configured to: sample the output electrical signal of the DC source and the input electrical signal of the DC load, and determine the power and the power consumption of the DC load based on the output electrical signal of the DC source and the input electrical signal of the DC load;   a second network device connected to the second sampling calculator, supporting a wireless networking mode, and configured to transmit the power and the power consumption of the DC load to the display terminal;   a second networking button, the second network device further configured to enter a wireless networking mode in response to the second networking button being triggered;   a second switch arranged between the DC input interface and the at least one DC output interface;   a second controller and a second switch button, the second controller having a power supply end connected to the DC source through the second switch button, and the second controller being connected to the second sampling calculator and configured to control the second switch to be switched off in response to a determination of an overcurrent output based on the output electrical signal of the DC source and the input electrical signal of the DC load; and   a second display device connected to the second network device and the second controller respectively, and configured to display a switching on-off state of the second switch and a network connection state of the second network device.   
     
     
         8 . The monitoring apparatus according to  claim 5 , wherein the AC load monitor comprises:
 an AC input interface adapted to be connected to the inverter;   at least one AC output interface, each of the at least one AC output interface adapted to be connected to one AC load;   a third sampling calculator connected to the AC input interface and the at least one AC output interface respectively, and configured to: sample the output electrical signal of the inverter and the input electrical signal of the AC load, and determine the power and the power consumption of the AC load based on the output electrical signal of the inverter and the input electrical signal of the AC load;   a third network device connected to the third sampling calculator, supporting a wireless networking mode, and configured to transmit the power and the power consumption of the AC load to the display terminal;   a third networking button, the third network device further configured to enter a wireless networking mode in response to the third networking button being triggered;   a third switch arranged between the AC input interface and the at least one AC output interface;   a power converter adapted to be connected to the inverter and configured to convert an alternating current generated by the inverter to generate a direct current;   a third controller and a third switch button, the third controller having a power supply end connected to the power converter through the third switch button, and the third controller being connected to the third sampling calculator and configured to control the third switch to be switched off in response to a determination of an overcurrent output or an existence of leakage based on the output electrical signal of the inverter and the input electrical signal of the AC load; and   a third display device connected to the third network device and the third controller respectively, and configured to display a switching on-off state of the third switch and a network connection state of the third network device.   
     
     
         9 . The monitoring apparatus according to  claim 5 , wherein the battery monitor comprises:
 a battery input interface adapted to connect the battery;   a current sensor configured to sample an input current of the battery and an output current of the battery;   a current detection interface connected to the current sensor;   a fourth sampling calculator connected to the battery input interface and the current detection interface respectively, and configured to: sample a battery voltage and determine the power, the residual capacity, the actual capacity, and the health state of the battery based on the battery voltage, the input current, and the output current of the battery;   a fourth network device connected to the fourth sampling calculator, supporting a wireless networking mode, and configured to forward the power, the residual capacity, the actual capacity, and the health state of the battery to the display terminal;   a fourth networking button, the fourth network device further configured to enter a wireless networking mode in response to the fourth networking button being triggered; and   a fourth display device connected to the fourth network device and configured to display a network connection state of the fourth network device.   
     
     
         10 . An energy storage system, comprising a monitoring apparatus for an energy storage system, wherein the monitoring apparatus comprises:
 a plurality of monitors, each of the plurality of monitors being configured to sample an input electrical signal and/or an output electrical signal of one energy storage device and determine an operating parameter of the corresponding energy storage device based on the input electrical signal and/or the output electrical signal, and each of the plurality of monitors supporting a wireless networking mode; and   a display terminal configured to perform a wireless communication with an upper computer, and transmit the operating parameter of the corresponding energy storage device to the upper computer by performing a wireless communication with each of the plurality of monitors when each of the plurality of monitors operates in the wireless networking mode, to allow the upper computer to display the operating parameter of the corresponding energy storage device.   
     
     
         11 . The energy storage system according to  claim 10 , wherein each of the plurality of monitors is further configured to perform a wireless communication with the upper computer to transmit the operating parameter of the corresponding energy storage device to the upper computer. 
     
     
         12 . The energy storage system according to  claim 11 , wherein each of the plurality of monitors is further configured to disconnect from the upper computer when the display terminal performs a wireless communication with the monitor. 
     
     
         13 . The energy storage system according to  claim 10 , wherein the monitoring apparatus further comprises a networking relay arranged between the plurality of monitors and the display terminal and configured to forward the operating parameters in the plurality of monitors to the display terminal. 
     
     
         14 . The energy storage system according to  claim 10 , wherein each of a plurality of energy storage devices comprises a photovoltaic module, a solar charging controller, a battery, and an inverter, and each of the plurality of monitors comprises:
 a photovoltaic monitor arranged between the photovoltaic module and the solar charging controller, and configured to: sample an output electrical signal of the photovoltaic module and an input electrical signal of the solar charging controller, determine a current value, a voltage value, a power, and power generation of the photovoltaic module based on the output electrical signal of the photovoltaic module and the input electrical signal of the solar charging controller, and perform an on-off control on a circuit between the photovoltaic module and the solar charging controller;   a direct current (DC) load monitor arranged between a DC source and a DC load of the energy storage system, and configured to: sample an output electrical signal of the DC source and an input electrical signal of the DC load, determine a power and power consumption of the DC load based on the output electrical signal of the DC source and the input electrical signal of the DC load, perform an on-off control on a circuit between the DC source and the DC load, and perform overcurrent protection based on the output electrical signal of the DC source and the input electrical signal of the DC load;   an alternating current (AC) load monitor arranged between the inverter and an AC load of the energy storage system, and configured to: sample an output electrical signal of the inverter and an input electrical signal of the AC load, determine a power and power consumption of the AC load based on the output electrical signal of the inverter and the input electrical signal of the AC load, perform an on-off control of a circuit between the inverter and the AC load, and perform overcurrent protection and leakage protection based on the output electrical signal of the inverter and the input electrical signal of the AC load; and   a battery monitor adapted to be connected to the battery, and configured to: sample an input electrical signal of the battery and an output electrical signal of the battery, and determine a power, a residual capacity, an actual capacity, and a health state of the battery based on the input electrical signal of the battery and the output electrical signal of the battery.   
     
     
         15 . The energy storage system according to  claim 14 , wherein the photovoltaic monitor comprises:
 a photovoltaic input interface adapted to be connected to the photovoltaic module;   a photovoltaic output interface adapted to be connected to the solar charging controller;   a first sampling calculator connected to the photovoltaic input interface and the photovoltaic output interface respectively, and configured to: sample the output electrical signal of the photovoltaic module and the input electrical signal of the solar charging controller, and determine the current value, the voltage value, the power, and the power generation of the photovoltaic module based on the output electrical signal of the photovoltaic module and the input electrical signal of the solar charging controller;   a first network device connected to the first sampling calculator, supporting a wireless networking mode, and configured to transmit the current value, the voltage value, the power, and the power generation of the photovoltaic module to the display terminal;   a first networking button, the first network device further configured to enter a wireless networking mode in response to the first networking button being triggered;   a first switch arranged between the photovoltaic input interface and the photovoltaic output interface;   a first controller and a first switch button, the first controller having a power supply end connected to the photovoltaic module through the first switch button, and the first controller being connected to the first sampling calculator and configured to: control the first switch to be switched off in response to the output electrical signal of the photovoltaic module and/or the input electrical signal of the solar charging controller triggering protection; and   a first display device connected to the first network device and the first controller respectively and configured to display a current operating state, a switching on-off state of the first switch, and a network connection state of the first network device.   
     
     
         16 . The energy storage system according to  claim 14 , wherein the DC load monitor comprises:
 a DC input interface adapted to be connected to the DC source;   at least one DC output interface, each of the at least one DC output interface adapted to be connected to one DC load;   a second sampling calculator connected to the DC input interface and the at least one DC output interface respectively, and configured to: sample the output electrical signal of the DC source and the input electrical signal of the DC load, and determine the power and the power consumption of the DC load based on the output electrical signal of the DC source and the input electrical signal of the DC load;   a second network device connected to the second sampling calculator, supporting a wireless networking mode, and configured to transmit the power and the power consumption of the DC load to the display terminal;   a second networking button, the second network device further configured to enter a wireless networking mode in response to the second networking button being triggered;   a second switch arranged between the DC input interface and the at least one DC output interface;   a second controller and a second switch button, the second controller having a power supply end connected to the DC source through the second switch button, and the second controller being connected to the second sampling calculator and configured to control the second switch to be switched off in response to a determination of an overcurrent output based on the output electrical signal of the DC source and the input electrical signal of the DC load; and   a second display device connected to the second network device and the second controller respectively, and configured to display a switching on-off state of the second switch and a network connection state of the second network device.   
     
     
         17 . The energy storage system according to  claim 14 , wherein the AC load monitor comprises:
 an AC input interface adapted to be connected to the inverter;   at least one AC output interface, each of the at least one AC output interface adapted to be connected to one AC load;   a third sampling calculator connected to the AC input interface and the at least one AC output interface respectively, and configured to: sample the output electrical signal of the inverter and the input electrical signal of the AC load, and determine the power and the power consumption of the AC load based on the output electrical signal of the inverter and the input electrical signal of the AC load;   a third network device connected to the third sampling calculator, supporting a wireless networking mode, and configured to transmit the power and the power consumption of the AC load to the display terminal;   a third networking button, the third network device further configured to enter a wireless networking mode in response to the third networking button being triggered;   a third switch arranged between the AC input interface and the at least one AC output interface;   a power converter adapted to be connected to the inverter and configured to convert an alternating current generated by the inverter to generate a direct current;   a third controller and a third switch button, the third controller having a power supply end connected to the power converter through the third switch button, and the third controller being connected to the third sampling calculator and configured to control the third switch to be switched off in response to a determination of an overcurrent output or an existence of leakage based on the output electrical signal of the inverter and the input electrical signal of the AC load; and   a third display device connected to the third network device and the third controller respectively, and configured to display a switching on-off state of the third switch and a network connection state of the third network device.   
     
     
         18 . The energy storage system according to  claim 14 , wherein the battery monitor comprises:
 a battery input interface adapted to connect the battery;   a current sensor configured to sample an input current of the battery and an output current of the battery;   a current detection interface connected to the current sensor;   a fourth sampling calculator connected to the battery input interface and the current detection interface respectively, and configured to: sample a battery voltage and determine the power, the residual capacity, the actual capacity, and the health state of the battery based on the battery voltage, the input current, and the output current of the battery;   a fourth network device connected to the fourth sampling calculator, supporting a wireless networking mode, and configured to forward the power, the residual capacity, the actual capacity, and the health state of the battery to the display terminal;   a fourth networking button, the fourth network device further configured to enter a wireless networking mode in response to the fourth networking button being triggered; and   a fourth display device connected to the fourth network device and configured to display a network connection state of the fourth network device.